4.10 understand that chemical reactions in which heat energy is given out are described as exothermic and those in which heat energy is taken in are endothermic
4.11 describe simple calorimetry experiments for reactions,such as combustion,displacement, dissolving and neutralisation in which heat energy changes can be calculated from measured temperature changes 4.12 calculate molar enthalpy change from heat energy change
4.13 understand the use of ΔH to represent molar enthalpy change for exothermic and endothermic reactions
4.14 represent exothermic and endothermic reactions on a simple energy level diagram
4.15 understand that the breaking of bonds is endothermic and that the making of bonds is exothermic 4.16 use average bond energies to calculate the enthalpy change during a simple chemical reaction
Energetics
back to IGCSE chemistryIn this section you will be assessed on
4.10 understand that chemical reactions in which heat energy is given out are described as exothermic and those in which heat energy is taken in are endothermic4.11 describe simple calorimetry experiments for reactions,such as combustion,displacement, dissolving and neutralisation in which heat energy changes can be calculated from measured temperature changes
4.12 calculate molar enthalpy change from heat energy change
4.13 understand the use of ΔH to represent molar enthalpy change for exothermic and endothermic reactions
4.14 represent exothermic and endothermic reactions on a simple energy level diagram
4.15 understand that the breaking of bonds is endothermic and that the making of bonds is exothermic
4.16 use average bond energies to calculate the enthalpy change during a simple chemical reaction
Section notes
Book pages :
Investigations
Resources
Power point presentations
Worksheets
Animations
bbcbitesize animation of endo and eco reactions